IMPORTANT: Note affecting all Linux builds The recommended Linux kernel version is 2.6.34 and glibc should be version 2.12 or higher. Minimum - kernel 2.6.27 and glibc 2.7. If your glibc version is lower than v.2.7, it must be upgraded before using Firebird 2.5 Classic/Superсlassic.

IMPORTANT: Note affecting all Linux builds The recommended Linux kernel version is 2.6.34 and glibc should be version 2.12 or higher. Minimum - kernel 2.6.27 and glibc 2.7. If your glibc version is lower than v.2.7, it must be upgraded before using Firebird 2.5 Classic/Superсlassic.

NOTE: To make the new engine work properly under multi-threaded conditions we had to use Grand Central Dispatch, which was first released in Mac OS X 10.6 (Snow Leopard). Mac OS X users should be aware that Firebird 2.5 will run only on Mac OS X 10.6 or higher versions. If you want to use an earlier version of OS X you will need to use an earlier version of Firebird."lipo" are the 64-bit Firebird Server with client libs as fat lib (32 and 64 bits). See here for examples.